IAEA Warns Iran's 440 Kilograms of Enriched Uranium Remain Unaccounted For

The fate of Iran's roughly 440 kilograms of uranium enriched to 60% remains unresolved, while the International Atomic Energy Agency says it cannot inspect key nuclear facilities or obtain sufficient information about the material.

A confidential IAEA report obtained by Agence France-Presse says the restricted access problem must be addressed "with the utmost urgency." The agency said it lacks information about Iran's nuclear materials and cannot enter relevant facilities to carry out inspections, creating concern over the risk of nuclear proliferation.

The access restrictions followed a 12-day military operation by Israel and the United States against Iran in June 2025, which included attacks on Iranian nuclear facilities. Before the United States joined the operation, the IAEA had calculated that Iran possessed about 440 kilograms of uranium enriched to 60%. That level is close to the 90% enrichment generally associated with producing a nuclear weapon.

The stockpile's status has remained unclear since June 2025. IAEA Director General Rafael Grossi said in June that the prevailing view was that the material remained where it had been before the attacks, near Iran's uranium-enrichment facility at Isfahan. The report said the agency remained concerned about its inability to enter the Isfahan nuclear facility.

Grossi again stressed that the long-running difficulties and recurring crises surrounding Iran's nuclear program must be resolved through a durable, verifiable diplomatic agreement.

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with the utmost urgency